Hangover Square is a 1945 American horror film directed by John Brahm, based on the 1941 novel Hangover Square by Patrick Hamilton. The screenplay was written by Barré Lyndon, who made a number of changes to the novel, including transforming George Harvey Bone into a classical composer-pianist and filming the story as a turn-of-the-20th-century period piece.

The film, which stars Laird Cregar, Linda Darnell and George Sanders, was released in New York City on February 7, 1945, two months after Cregar suffered a fatal heart attack.